Apologia General Science Module 3

True or false, an experimental variable is good when you are using it to learn something from the experiment.

• True

• False

Tags

NGSS.MS-PS3-4

True or false, you should always reduce the number of experimental variables that are not a necessary part of an experiment.

• True

• False

Tags

NGSS.MS-PS1-2

In an experiment, in which group would placebos be used?

• variable group

• control group

What is an aspect of an experiment that changes during the course of the experiment?

• Control

• blind experiment

• Variable

• Double blind experiment

Tags

NGSS.MS-PS1-2

What do we call experiments in which neither the participants nor the scientists know who is in the control group?

• Control

• Blind experiments

• Variable

• Double Blind experiment

The part of the experiment to which all others will be compared is called...

• Control

• Blind experiment

• Variable

• Double blind experiment

Sometimes scientists are made blind to the experiment they are working on. Do they do this to reduce the appearance of objectivity or subjectivity?

• objectivity

• subjectivity

Two things are floating on the surface of a sink full of water; a cork and a paper clip. What happens when dish soap is added?

• Both the cork and paperclip will sink

• The paper clip will sink, but the cork will float

• Both will continue to float

• The cork will sink, the paperclip will float

Which type of experiment produces more objective results?

• Single blind

• Double blind

Which are parts of an experiment? Select all that apply.

• Control

• Variable

• Placebo

• Scientist or technician

Tags

NGSS.MS-PS1-2